38results about How to "Strong initial tack" patented technology

The invention provides an efficient cigarette connection adhesive with loading of a mint essence and a preparation process of the efficient cigarette connection adhesive. The efficient cigarette connection adhesive is prepared from the following components in percentage by weight: 40-60 percent of VAE emulsion, 15-40 percent of mint essence, 10-25 percent of mint essence-starch emulsion and 1-5 percent of water, wherein the mint essence-starch emulsion is prepared by mixing the mint essence and modified starch according to a mass ratio of 1: (1-4). The efficient cigarette connection adhesive is good in flowability, is strong in adhesive ability, is rapid in drying speed, is high in mint essence load, is stable in flavoring effect when applied to a cigarette, is obvious in spicy smell, is durable in fragrance, has obvious cooling characteristic of mint and is comfortable and pure in taste.

The invention discloses a fast curing reaction type hot melt adhesive and a preparation method thereof. The fast curing reaction type hot melt adhesive comprises the raw materials in percentage by weight: 30 to 60 percent of polyester glycol, 10 to 40 percent of isocyanate, 0.1 to 2 percent of adhesion promoter, 5 to 10 percent of tackifier, 7 to 20 percent of thermoplastic resin, 4 to 8 percent of coupling agent, 0.5 to 3 percent of stabilizer, 2 to 9 percent of filler and 0.1 to 5 percent of catalyst. The preparation method comprises the following steps of: adding the polyester glycol into the thermoplastic resin, the adhesion promoter, the tackifier, the coupling agent, the stabilizer and the filler, mixing, heating, stirring, blending, performing vacuum drying dehydration at the temperature of between 100 and 130 DEG C, adding the isocyanate and the catalyst under nitrogen protection, thermostatically stirring at the temperature of between 70 and 80 DEG C, and reacting for 3 to 5 hours to prepare the fast curing reaction type hot melt adhesive. The product of preparation method has short crosslinking and curing time and high viscosity and is nontoxic, harmless and environmentally-friendly.

The invention relates to an ultralow-formaldehyde-release urea-formaldehyde resin adhesive and a preparation process thereof. The preparation process comprises the following steps: adjusting the pH value of a formaldehyde solution by using sodium hydroxide; then adding urea for reaction, and dropwise adding formic acid during the reaction to control the reaction pH value; then under a certain viscosity, adjusting the pH value by using sodium hydroxide; adding hydroxyl methyl cellulose, and adding aluminum sulfate for reaction; adjusting the pH value by using formic acid; adding polyvinyl alcohol and pure water for reaction; and cooling to room temperature to obtain the ultralow-formaldehyde-release urea-formaldehyde resin adhesive. According to the ultralow-formaldehyde-release urea-formaldehyde resin adhesive and the preparation process provided by the invention, the obtained urea-formaldehyde resin adhesive has the characteristics of low formaldehyde release quantity, good pre-pressing property, long opening depositing time, strong initial viscosity and the like, and meanwhile, the solid content is greatly improved, so that the urea-formaldehyde resin adhesive is suitable for production of veneers, shaving boards, fiber boards and ecological boards.

The invention discloses a high-performance hot-melt pressure-sensitive adhesive. The high-performance hot-melt pressure-sensitive adhesive comprises thermoplastic styrene-butadiene rubber, a tackifier, a plasticizer, a filler, an antioxidant and a coupling agent, wherein the tackifier is rosin modified phenolic resin; the plasticizer is di(2-ethyl hexyl) phthalate; the filler is quartz powder; the antioxidant is bis(3,5- tert-butyl-4-hydroxyl phenyl) thioether; and the coupling agent is aminopropyl triethoxy silane. The product is prepared by adopting five additives including the hermoplastic styrene-butadiene rubber, the tackifier, the plasticizer, the filler, the antioxidant and the coupling agent; and the prepared adhesive composition has characteristics of good stickiness, strong initial stickiness, environmental friendliness, high safety, high production efficiency and low production cost.

The invention provides a single-component water-soluble environmentally-friendly roller adhesive and a preparation method thereof. The single-component water-soluble environmentally-friendly roller adhesive comprises the following components in parts by weight: 60-80 parts of aqueous chloroprene rubber latex, 20-30 parts of an acrylic acid emulsion, 2-10 parts of an aqueous emulsifier, 5-10 parts of a modified rosin emulsion, 1-5 parts of a crosslinking agent, 0.5-1 part of an aqueous thickening agent, 2-8 parts of a pH regulating agent, 0.2-0.8 part of an aqueous antifoaming agent and 10-20 parts of deionized water. Due to the adoption of the single-component water-soluble environmentally-friendly roller adhesive, the same material selected from leather, sponge and a non-woven fabric can be bonded, different materials selected from sponge and wood, sponge and nylon cloth as well as wood and a non-woven fabric can be bonded, and the defects of mist caused by aqueous spraying, non-uniform thickness caused by manual spraying, failure in mechanical automatic operation production and the like are overcome. Moreover, the single-component water-soluble environmentally-friendly roller adhesive has the advantages of avoidance of skin formation during rolling, particle resistance, high initial adhesion, high operating efficiency, saving in labor force and suitability for sponge material operation in a large-area range.

The invention discloses a pressure-sensitive adhesive applied to a polyvinyl chloride film as well as a preparation method and application of the pressure-sensitive adhesive. The invention provides arubber system hot-melt pressure-sensitive adhesive applied to a polyvinyl chloride film as well as a preparation method and application of the pressure-sensitive adhesive. The rubber system hot-melt pressure-sensitive adhesive is mainly prepared from a segmented copolymer thermoplastic elastomer, a plasticizer, tackifying resin, pure C9 monomer resin and an antioxidant in specific parts by mass. The rubber system hot-melt pressure-sensitive adhesive disclosed by the invention can be used for coating at 150-160 DEG C, has good plasticizer resistance and strong initial adhesion, and is particularly suitable for preparing a soft electrical insulation PVC adhesive tape. The preparation method of the rubber system hot-melt pressure-sensitive adhesive is simple in process, high in production efficiency and suitable for large-scale production.